Wilmeb w



(No Model.) I

WW. LAMBORN. ROAD MACHINE. No. 341,151. f Y Patented May 4, 1886.

IOv

UNITED STATES PATENT OEEICE.

VVILMER XV. LAMBORN, OF PEORIA, ILLINOIS, ASSIGNOR OE ONE-HALF TO CHARLES D. PRESTON, OF SAME PLACE.

ROAD-MACHINE.

SPECIFICATION forming part of Letters Patent NQ. 341,151, dated May 4,1886.

Application filed July 20, 1885.

To all whom it may concern.-

Beit known that I, WILMER W. LAMEORN, a citizen of the United States, residing at Peoria, in the county of the same name, in the State of Illinois, have invented certain new and useful Improvements in Road-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention relates to an improvement in that class of road-machines, each of which has a scraper-bar capable of being placed at different angles to the line of draft, the object being to produce a cheaper and more simple machine with lighter and more direct draft.

My invention consists in certain details of construction and combination of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is a view in perspective of a road-machine embodying my invention with the scraper-bar at such an angle to the line of draft that the end of the scraper-bar on the right-hand side, looking forward in the direction of the line of draft, is at a position forward of the center of the machine, and the end of the scraperbar on the left-hand side is at a position in the rear of the center of the machine. Fig. 2 is a section in elevation of the machine with the scraper-bar at a rightangle to the line of draft, said section being made on the line :v a; in Fig. 3. Fig. 3 is a plan of the machine with the scraper-bar at such an angle to the line of draft that the end of the scraper-bar on the left-hand side, looking forward in the direction of the line of draft, is at a position forward of the center of the machine, and the end of the scraper-bar on thc right-hand side is in a position at the rear of the center of the machine. Fig. 4 is aside elevation of a portion of one of the rear wheels, showing one of the detachable clamps for preventing deflection of the machine sidewise from the line of draft. Fig. 5 is a section of one of the detachable clamps and the Serial No. 172,026. (No model.)

felly of the rear wheel made by passing a plane through them at a right angle to the plane in which the wheel revolves. Fig. 6 is a detail view showing the connection of the scraper With the plate K.

O is the supporting-frame with its forward end resting on the front running-gear of the machine and its rear end resting on the rear axle. This supportingframe may be arched from one end to the other, as shown, or a straight horizontal frame may be used, as the combination of parts necessary to change the angle of the scraper-bar with reference to the line of draft is adapted to be used on the frame of any four-wheeled road-machine.

D D are posts bolted firmly to the main frame O at their lower ends and to the longitudinal horizontal bars E E at their upper ends. These posts act as supports to the bars E E. The horizontal bar H is placed at a right angle to the line of draft and firmly secured at each end by bolts to the sides of the supporting-frame O,as shown. Its function is to brace the supporting-frame C and to provide a suitable place for the eye in which the bolt Gis placed. The bolt G passes vertically through the transverse horizontal frame, hereinafter more fully described, and thence through the eye in the horizontal bar H. The said transverse horizontal frame is allowed to turn freely on the bolt G. It consists of two parallel horizontal bars, I and J, firmly secured to each other at their ends. The bar I passes above each of the longitudinal bars E E and rests thereon, and the bar J passes immediately below each of the bars E E, so that the transverse horizontal frame so formed is permitted to move on the vertical axis at G in a horizontal plane, the bars E E acting as guides to prevent upward or downward deiiection of said frame.

K is a plate of metal held in the position shown by the bracesL L L, one of the ends of each of which braces L being bolted securely to the plate K, the other ends of said braces L being bolted to the supporting-frame and rear axle at points M, N, and O, respectively. In the plate K is an elliptical hole or eye, R, through which the curved-rod P, (secured firmly at its ends to the rear side of the scraper-bar Q,

IOO

midway between the two ends of the scraperbar, as showin) is permitted to move freely as the scraper-bar is moved upward ordownward. |The eye B is made in the form of an ellipse, with the longer diameter extending in a line at a right angle to the line of draft and the shorter diameter coinciding with the line of draft. rllhis eye B is constructed iu this shape, that the scraper-bar Q maybe elevated or depressed when said scraper-bar is placed at any other than a right angle to the line of draft without being obstructed bythe plateK. The object of this plate K, held firmly in position by braces L, and engaging the curved rod l?, which is secured firmly to the scraper-bar, as shown, is to preventhorizontal endwise movement of the scraper-bar when it is in operiation at any other than a right angle to the line of draft, and to assist in supporting the middle of the scraper-bar when it is in operation at a right angle to the line of draft.

rIhe transverse horizontal frame, composed of parallel bars l and J, serves to uphold the operating-levers S S, which are constructed in the manner shown, having fulcrums at T,

' and having their shorter arms connected to the rear side of the scraper-bar Q by links U. By exerting force downward on the longer arm of either of these levers, the corresponding end of the scraper-bar may be elevated without causing an elevation of the other end of the scraperbar, and as the transverse horizontal frame, already described, revolves horizontally on the same vertical axis as the scraperbar Q, which is hereinafter more fully shown, and is firmly secured, by devices hereinafter more fully described, to the arc B, along with the said scraper-bar, the operating-levers are kept constantly in the same relative position to the scraper-bar at whatever angle to the line of draft the said transverse horizontal frame and scraper-bar may be placed.

The arc A is secured firmly by suitable bracing to the sulinporting-frame C. The center of the circle of which this arc A is a part may be found thus: A vertical line passed through the center of the bolt Gr will pass through the center of the eye R in the plate K. At a point in this vertical line ou a level with the position of the are A will be found the center of the circle of which the arc A is a part. The arc A is constructed with a flange, V, as shown, which the arc B engages, rests upon, and moves freely upon. The are B is a part of a circle having the same radius as the circle of which the arc A is a part, and its center is as much farther down on the vertical line before described as passing through the V center of the bolt G and eye R as is the arc cured to the lip XV, and the other ends of said arms, respectively, are rmly bolted to the uprights Y, which uprights are respectively bolted firmly to the opposite ends of the transverse horizontal frame aforesaid. By this means any movement by which the transverse horizontal frame is revolved horizontally is communicated to the lower arc, B, which is moved a corresponding distance on the lower flange of the arc A. The li-shaped lip NV of the lower arc, B, will thus constantly have a position in front of and at a right angle to the transverse horizontal frame at the point where the bolt G passes through said frame.

ln the ii-shaped lip \V,'at its lower end, is an eye, Z, in which is iittcd loosely the rod or curved bar a.. One end of this curved bar (t is fastened to one of the draft-beams b and the other end of said curved bar is fastened to one of the draft-beams c. The curved bar thus formsaloopjoining the two draft-beams,which there converge to a point,and unites them both to the lip XV, Fig. 2. These draft-beams Zi and c pass-over and are firmly attached to the scraper-bar Q at the rear side thereof. The draftbeams thus converging and being connected by the loosely-fitting curved bar a to the V- shaped lip NV, the ends of the scraper-bar can be elevated or depressed independently of each other at whatever angle to the line of draft the scraper-bar may be placed.

A bolt passing vertically through both arcs A and B at any desired point, as d, is used to prevent the are B from moving along the iiange V when it is desired to hold the scraperbar at any particular angle for work. The arc A may be extended, if deemed necessary, as shown by the dotted line in Fig. 3. The arc B will then form a complete semicircle, the ends of which will be respectively secured firmly to the ends of the transverse horizontal frame by means of the uprights Y. The construction and position with relation to the transverse horizontal frame of the devices for attaching the draft-beams to the arc B will remain as shown.

Instead of engaging the flange V of the upper arc, A, for a short distance, and being supported by the arms z' t', as shown, the are or semicircle B will engage the said iiange V throughout the whole lengt-h of the said are B, and the armsz' will not be used. These forms are practically the same device and are claimed 'as part of my invention.

In Figs. 4 and 5 e is the felly of the wheel; f, the wedge-shaped detachable clamp placed upon andaround the felly, and secured thereto by the plate and nuts marked g and Iz, respectively. The wedge sinks into the ground on the revolution of the wheel when bearing the machine, and prevents lateral motion of the machine when it is in operation. These clamps are designed as improvements on devices for the same purpose, inasmuch as they are clasped around the fellyinstead of being fastened thereto by bolts passing through the felly and impairing its strength.

ICO

IIO

Iaving fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. In a road-machine, the combination of a supporting-frame and a scraper-bar having forward attachments through draft-beams to one of two arcs engaging each other with a transverse horizontal frame, both scraper-bar and transverse horizontal frame being so constructed as to revolve on the same vertical axis and take different angles to the line of draft, substantially as shown.

2. In a roadmachine, the combination,with a supportingfra1ne,of an arc firmly secured to said supportingframe, and a second arc engaging the first arc and moving freely thereon, rigidly secured to a transverse horizontal frame and pivotally secured through draftbeams to a scraper'bar, both scraper-bar and horizontal transverse frame being constructed so as to take different angles to the line of draft, substantially as shown.

3. In a road-machine, the combination of a scraper-bar horizontally adjustable on a Vertical axisto different angles to the line of draft, its ends being vertically adjustable independently of each other, with the plate K rigidly secured immediatelyin the rear of the scraperbar, said plate being provided with a slot or eye engaging a curved rod, P, secured firmly to the rear side of the scraperbar, substantially as shown.

4. In a road-machine, the combination,with the supporting-frame with the two arcs, the scraper-bar pivotally connected through draftbeams with the lowerrnost are, the transverse horizontal frame rigidly attached to the lowermost arc, the plate K, and the curved rod I?, substantially as shown.

WILMER W. LAMBORN.

Witn esses:

CHARLES D. PRESTON, W. T. IRWIN. 

